1323411067721 has 2 divisors, whose sum is σ = 1323411067722. Its totient is φ = 1323411067720.

The previous prime is 1323411067661. The next prime is 1323411067871. The reversal of 1323411067721 is 1277601143231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1189135725625 + 134275342096 = 1090475^2 + 366436^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1323411067721 is a prime.

It is a super-3 number, since 3×1323411067721³ (a number of 37 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1323411063721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661705533860 + 661705533861.

It is an arithmetic number, because the mean of its divisors is an integer number (661705533861).

Almost surely, 2^{1323411067721} is an apocalyptic number.

It is an amenable number.

1323411067721 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323411067721 is an equidigital number, since it uses as much as digits as its factorization.

1323411067721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 38.

The spelling of 1323411067721 in words is "one trillion, three hundred twenty-three billion, four hundred eleven million, sixty-seven thousand, seven hundred twenty-one".